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      <p>
        Because non-UNIX systems do not support atomic file system
        reads, the <a href="../api_reference/C/db_hotbackup.html" class="olink">db_hotbackup</a> utility has been modified to read data
        through the environment. If your application is running on a
        UNIX based system such as Solaris, HPUX, BSD or Mac OS, you
        can specify the <span class="bold"><strong>-F</strong></span> flag to
        read directly from the filesystem. Please refer to
        <a href="../programmer_reference/transapp_recovery.html" class="olink">Recovery procedures</a> in the <em class="citetitle">Berkeley DB Programmer's Reference Guide</em>
        for more information on safely backing up your databases.
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